Answer:
\[v=20\,\,m/s=20\times {{10}^{-3}}km/s\]
\[t=25\,\,\min =25\times 60\sec .\]
\[S=?\]
\[Dis\tan ce=Speed\times time\]
\[=20\times {{10}^{-3}}km\,\,{{s}^{-1}}\times 25\times 60s\]
\[=500\times {{10}^{-3}}\times 60km=30km\]
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